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T. SPRIOK. 2 SIMS-sheet 1.

(No model.)

S R A c R O P E K A R N O T G I R P Patented July 5, 188.1.

. Inventor:

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UNITED STATES PATENT O FIcE.

.THEODOR SPRIOK, OF ODESSA, RUSSIA.

FRICTION-BRAKE FOR CARS.

SPECIFICATION forming part of Letters Patent No. 243,736, dated July 5, 1881.

Application filed March 26, 1881. (No model.)

1 0 all whom it may concern Be it known that I, THEODOR SPRrcK,-residing at Odessa, in the Empire of Russia, and a subject of the Emperor of Austria, have invented Improvements in Friction-Brakes for Railway-Carriages, of which the following is a specification.

The advantages of this improved brake are the following: First, the brakingis effected by means of the draw-line or signal-rope. Second, the unbraking or removing of the brake is efl'ected by the traction oftheengine. Third, the ordinary hand-brake may be used instead of the friction-brake, and vice versa. the brakingis impossible while the carriage is drawn with the draw-hook. Fifth, in case of the dismemberment of a railway-train the dislnembered part is instantly and automatically braked in consequence of the straining of the draw-line. Sixth, the carriages provided with this brake can be braked in every direction of the railway-line.

In order that my said invention may be more clearly understood, I will proceed, aided by the accompanying drawings, more fully to describe the same.

In the accompanying drawings, Figure l is a sectional side elevation of my improved brake, showing it on a truck. Fig. 2 is a top view of the same. Fig. 3 is a detail side view of the upper part of rod 1), and ot' the pulleys a a and a for receiving the signal-line l.

WVhen the brake is to be set at work the engine-driver pulls the signal-line 1, Fig. 3, running on three pulleys, a (t a, and extending over all carriages. By so doing the rod or line 1), Figs. 1, 2, 3, is drawn upward, and consequently the catch 0 disengaged from the ratchet-wheel S. Thesuspended friction rollers F F are brought against the tires, the said triction-rollers being connected by chains 6 c with the rollers R R keyed on the axle of the ratchetwhecl S, and falling by their proper weight on the tires, when the catch cdisengages the wheel S. The said rollers are now taken along by the tires, thus winding on Fourth,

nothing to do but to put the steam on, so that the traction apparatus 2 is drawn out, thus advancing the lever B by means of the tappet m. The lever B draws directly the rod or chain D, Fig. 1, and turns the roller It, Figs. 1 and 2, and the rollers R R keyed on the same shaft, as well as the ratchet-wheel S. The friction-rollers F and F are disengaged from the tires by means of the rollers It R and chains 6. The arm of lever A sinks by its weight and disengages the brake-blocks from the wheels. The shattf, bearing the frictionrollers Fa-nd F ,is suspended on the armshand k movable at the points 9 and 9 These arms have a shoulder, t, on which is applied a link, a 'v, with a set-screw, s, and by tightening or slackening this screw the pressure of the blocks against the wheels is weakened or augmented. The screw 15 serves to regulate the brake-blocks.

I claim- 1. In a friction-brake for railway-carriages, the combination of thedraw-line Z with the rod or line I), catch 0, ratchet-wheel S, chain c, and shaft f, having rollers F F, and with the chain d, brake-lever A, traction slide 2, tappet m, lever B, and chain D, substantially as herein shown and described.

2. In a fricti0n-brake,,the combination of the draw-line Z of the rollers a a and rod, rope, or chain 1) with the catch 0 of the ratchetwheel S, and with the friction-rollers F F, for the purpose herein described.

3. In a friction-brake, the combination of the draw-hook.z of the levers B and rod or chain D with the roller R, fixed on the same shaft as the ratchet-wheel S, and the rollers R R for the purpose herein described.

4.. The levers h k connected with the friction-rollers F F, and the shoulders of the said levers,in combination with the adjustable links a v of the brake-lever A, for the purpose herein described. 7 Q

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

THEODOR SPRICK.

Witnesses:

E. S. MESPRUNG, W. H. STUART. 

